2018-03-13 23:22:17 +01:00
|
|
|
/*
|
|
|
|
* This file is a part of morm
|
|
|
|
* and is distributed under the 2-Clause BSD licence.
|
|
|
|
* Author: Tomasz Sowa <t.sowa@ttmath.org>
|
|
|
|
*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Copyright (c) 2018, Tomasz Sowa
|
|
|
|
* All rights reserved.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions are met:
|
|
|
|
*
|
|
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
|
|
* this list of conditions and the following disclaimer.
|
|
|
|
*
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifndef headerfile_morm_modelconnector
|
|
|
|
#define headerfile_morm_modelconnector
|
|
|
|
|
2018-03-23 20:26:57 +01:00
|
|
|
#include "baseexpression.h"
|
2018-04-17 00:46:25 +02:00
|
|
|
#include "dbconnector.h"
|
|
|
|
#include "flatexpression.h"
|
|
|
|
#include "flatconnector.h"
|
2018-03-13 23:22:17 +01:00
|
|
|
|
|
|
|
|
|
|
|
namespace morm
|
|
|
|
{
|
|
|
|
class Model;
|
2018-04-17 00:46:25 +02:00
|
|
|
|
2018-03-13 23:22:17 +01:00
|
|
|
|
2018-03-30 21:34:45 +02:00
|
|
|
template<typename ModelClass>
|
|
|
|
class Finder;
|
|
|
|
|
2018-03-13 23:22:17 +01:00
|
|
|
|
|
|
|
class ModelConnector
|
|
|
|
{
|
|
|
|
|
|
|
|
public:
|
|
|
|
|
|
|
|
ModelConnector();
|
2018-03-23 20:26:57 +01:00
|
|
|
virtual ~ModelConnector();
|
2018-03-13 23:22:17 +01:00
|
|
|
|
2018-04-19 17:21:51 +02:00
|
|
|
virtual int get_connector_mode();
|
|
|
|
|
2018-03-13 23:22:17 +01:00
|
|
|
// FIX ME
|
|
|
|
// add c-copy ctr (allocate a new stream and expression)
|
|
|
|
|
2018-04-22 03:26:46 +02:00
|
|
|
virtual bool was_db_error();
|
|
|
|
virtual std::wstring get_db_error();
|
|
|
|
|
|
|
|
|
2018-03-23 20:26:57 +01:00
|
|
|
virtual void set_stream(PT::TextStream & stream);
|
|
|
|
virtual PT::TextStream * get_stream();
|
2018-03-13 23:22:17 +01:00
|
|
|
|
2018-03-23 20:26:57 +01:00
|
|
|
virtual void set_flat_connector(FlatConnector & flat_connector);
|
2018-03-30 21:34:45 +02:00
|
|
|
|
2018-03-23 20:26:57 +01:00
|
|
|
virtual void set_db_connector(DbConnector & db_connector);
|
2018-03-30 21:34:45 +02:00
|
|
|
virtual DbConnector * get_db_connector();
|
|
|
|
|
|
|
|
|
|
|
|
virtual void set_db_expression_output_type(int output_type);
|
2018-03-13 23:22:17 +01:00
|
|
|
|
2018-03-23 20:26:57 +01:00
|
|
|
virtual void to_text(PT::TextStream & stream, Model & model);
|
2018-03-13 23:22:17 +01:00
|
|
|
|
2018-03-30 21:34:45 +02:00
|
|
|
|
|
|
|
virtual void generate_select_columns(PT::TextStream & stream, Model & model);
|
2018-03-23 20:26:57 +01:00
|
|
|
virtual void generate_insert_query(PT::TextStream & stream, Model & model);
|
|
|
|
virtual void generate_update_query(PT::TextStream & stream, Model & model);
|
2018-04-22 03:26:46 +02:00
|
|
|
virtual void generate_remove_query(PT::TextStream & stream, Model & model);
|
2018-03-13 23:22:17 +01:00
|
|
|
|
2018-04-22 03:26:46 +02:00
|
|
|
virtual bool insert(Model & model);
|
|
|
|
virtual bool update(Model & model);
|
|
|
|
virtual bool remove(Model & model);
|
2018-03-13 23:22:17 +01:00
|
|
|
|
2018-04-17 00:46:25 +02:00
|
|
|
virtual void map_values_from_query(Model & model);
|
|
|
|
|
|
|
|
virtual void clear_values(Model & model);
|
|
|
|
|
2018-03-30 21:34:45 +02:00
|
|
|
// template<typename ModelClass>
|
|
|
|
// Finder<ModelClass> & find()
|
|
|
|
// {
|
|
|
|
// allocate_default_stream_if_needed();
|
|
|
|
// return Finder<ModelClass>(this);
|
|
|
|
// }
|
2018-03-23 20:26:57 +01:00
|
|
|
|
|
|
|
|
2018-03-13 23:22:17 +01:00
|
|
|
protected:
|
|
|
|
|
2018-04-17 00:46:25 +02:00
|
|
|
int model_connector_mode;
|
|
|
|
|
2018-03-23 20:26:57 +01:00
|
|
|
FlatConnector * flat_connector;
|
|
|
|
DbConnector * db_connector;
|
2018-03-13 23:22:17 +01:00
|
|
|
|
2018-03-23 20:26:57 +01:00
|
|
|
PT::TextStream * out_stream; // IMPROVE ME give here an interface to the base stream (implement him)
|
2018-03-13 23:22:17 +01:00
|
|
|
bool out_stream_allocated;
|
|
|
|
|
2018-04-17 00:46:25 +02:00
|
|
|
//BaseExpression * expression_callback;
|
|
|
|
//DbConnector * db_connector_callback;
|
2018-03-13 23:22:17 +01:00
|
|
|
|
|
|
|
void allocate_default_stream();
|
|
|
|
void allocate_default_stream_if_needed();
|
|
|
|
void deallocate_stream();
|
|
|
|
|
|
|
|
|
|
|
|
template<typename FieldValue>
|
2018-03-23 20:26:57 +01:00
|
|
|
void field(const wchar_t * field_name, FieldValue & field_value, bool insertable, bool updatable, bool is_primary_key)
|
2018-03-13 23:22:17 +01:00
|
|
|
{
|
2018-04-17 00:46:25 +02:00
|
|
|
// may we need only db_connector_callback?
|
|
|
|
|
|
|
|
// if( expression_callback )
|
|
|
|
// {
|
|
|
|
// expression_callback->field(field_name, field_value, insertable, updatable, is_primary_key);
|
|
|
|
// }
|
|
|
|
|
|
|
|
// if( db_connector_callback )
|
|
|
|
// {
|
|
|
|
// db_connector_callback->get_value_by_field_name(field_name, field_value);
|
|
|
|
// }
|
|
|
|
|
|
|
|
if( model_connector_mode == MORM_MODEL_CONNECTOR_MODE_GENERATING_FLAT_EXPRESSION && flat_connector )
|
|
|
|
{
|
|
|
|
FlatExpression * flat_expression = flat_connector->get_expression();
|
|
|
|
|
|
|
|
if( flat_expression )
|
|
|
|
{
|
|
|
|
flat_expression->field(field_name, field_value, insertable, updatable, is_primary_key);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if( model_connector_mode == MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_EXPRESSION && db_connector )
|
|
|
|
{
|
|
|
|
DbExpression * db_expression = db_connector->get_expression();
|
|
|
|
|
|
|
|
if( db_expression )
|
|
|
|
{
|
|
|
|
db_expression->field(field_name, field_value, insertable, updatable, is_primary_key);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if( model_connector_mode == MORM_MODEL_CONNECTOR_MODE_READING_VALUE_FROM_DB && db_connector )
|
|
|
|
{
|
|
|
|
db_connector->get_value_by_field_name(field_name, field_value);
|
|
|
|
}
|
|
|
|
|
|
|
|
if( model_connector_mode == MORM_MODEL_CONNECTOR_MODE_CLEARING_VALUE && db_connector )
|
|
|
|
{
|
|
|
|
// IMPROVE ME those clearing should be moved to a better place
|
|
|
|
db_connector->clear_value(field_value);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
template<typename ModelClass>
|
|
|
|
void field_list(const wchar_t * field_name, std::list<ModelClass> & field_list, bool insertable = true, bool updatable = true, bool is_primary_key = false)
|
|
|
|
{
|
2018-04-18 19:52:09 +02:00
|
|
|
if( model_connector_mode == MORM_MODEL_CONNECTOR_MODE_GENERATING_FLAT_EXPRESSION && flat_connector )
|
2018-04-17 00:46:25 +02:00
|
|
|
{
|
|
|
|
FlatExpression * flat_expression = flat_connector->get_expression();
|
|
|
|
|
|
|
|
if( flat_expression )
|
|
|
|
{
|
|
|
|
flat_expression->field_list(field_name, field_list, insertable, updatable, is_primary_key);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template<typename FieldValue>
|
|
|
|
void get_last_sequence(const wchar_t * sequence_table_name, FieldValue & field_value)
|
|
|
|
{
|
|
|
|
if( db_connector )
|
2018-03-13 23:22:17 +01:00
|
|
|
{
|
2018-04-17 00:46:25 +02:00
|
|
|
db_connector->get_last_sequence(sequence_table_name, field_value);
|
2018-03-13 23:22:17 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-04-17 00:46:25 +02:00
|
|
|
|
2018-03-13 23:22:17 +01:00
|
|
|
/*
|
|
|
|
* Model is using field() method
|
|
|
|
*/
|
2018-03-30 21:34:45 +02:00
|
|
|
friend class Model;
|
|
|
|
template<typename ModelClass> friend class Finder;
|
|
|
|
|
2018-03-13 23:22:17 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|